001/*
002 * Copyright The Apache Software Foundation
003 *
004 * Licensed to the Apache Software Foundation (ASF) under one or more
005 * contributor license agreements. See the NOTICE file distributed with this
006 * work for additional information regarding copyright ownership. The ASF
007 * licenses this file to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 * http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
015 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
016 * License for the specific language governing permissions and limitations
017 * under the License.
018 */
019
020package org.apache.hadoop.hbase.thrift;
021
022import org.apache.hadoop.conf.Configuration;
023import org.apache.hadoop.hbase.CallQueueTooBigException;
024import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
025import org.apache.hadoop.hbase.MultiActionResultTooLarge;
026import org.apache.hadoop.hbase.NotServingRegionException;
027import org.apache.hadoop.hbase.RegionTooBusyException;
028import org.apache.hadoop.hbase.UnknownScannerException;
029import org.apache.hadoop.hbase.exceptions.ClientExceptionsUtil;
030import org.apache.hadoop.hbase.exceptions.FailedSanityCheckException;
031import org.apache.hadoop.hbase.exceptions.OutOfOrderScannerNextException;
032import org.apache.hadoop.hbase.exceptions.RegionMovedException;
033import org.apache.hadoop.hbase.exceptions.ScannerResetException;
034import org.apache.hadoop.hbase.thrift.generated.IOError;
035import org.apache.hadoop.hbase.thrift2.generated.TIOError;
036import org.apache.yetus.audience.InterfaceAudience;
037
038/**
039 * This class is for maintaining the various statistics of thrift server
040 * and publishing them through the metrics interfaces.
041 */
042@InterfaceAudience.Private
043public class ThriftMetrics  {
044
045
046  public enum ThriftServerType {
047    ONE,
048    TWO
049  }
050
051  public MetricsThriftServerSource getSource() {
052    return source;
053  }
054
055  public void setSource(MetricsThriftServerSource source) {
056    this.source = source;
057  }
058
059  private MetricsThriftServerSource source;
060  private final long slowResponseTime;
061  public static final String SLOW_RESPONSE_NANO_SEC =
062    "hbase.thrift.slow.response.nano.second";
063  public static final long DEFAULT_SLOW_RESPONSE_NANO_SEC = 10 * 1000 * 1000;
064
065
066  public ThriftMetrics(Configuration conf, ThriftServerType t) {
067    slowResponseTime = conf.getLong( SLOW_RESPONSE_NANO_SEC, DEFAULT_SLOW_RESPONSE_NANO_SEC);
068
069    if (t == ThriftServerType.ONE) {
070      source = CompatibilitySingletonFactory.getInstance(MetricsThriftServerSourceFactory.class).createThriftOneSource();
071    } else if (t == ThriftServerType.TWO) {
072      source = CompatibilitySingletonFactory.getInstance(MetricsThriftServerSourceFactory.class).createThriftTwoSource();
073    }
074
075  }
076
077  public void incTimeInQueue(long time) {
078    source.incTimeInQueue(time);
079  }
080
081  public void setCallQueueLen(int len) {
082    source.setCallQueueLen(len);
083  }
084
085  public void incNumRowKeysInBatchGet(int diff) {
086    source.incNumRowKeysInBatchGet(diff);
087  }
088
089  public void incNumRowKeysInBatchMutate(int diff) {
090    source.incNumRowKeysInBatchMutate(diff);
091  }
092
093  public void incMethodTime(String name, long time) {
094    source.incMethodTime(name, time);
095    // inc general processTime
096    source.incCall(time);
097    if (time > slowResponseTime) {
098      source.incSlowCall(time);
099    }
100  }
101
102  public void incActiveWorkerCount() {
103    source.incActiveWorkerCount();
104  }
105
106  public void decActiveWorkerCount() {
107    source.decActiveWorkerCount();
108  }
109
110  /**
111   * Increment the count for a specific exception type.  This is called for each exception type
112   * that is returned to the thrift handler.
113   * @param rawThrowable type of exception
114   */
115  public void exception(Throwable rawThrowable) {
116    source.exception();
117
118    Throwable throwable = unwrap(rawThrowable);
119    /**
120     * Keep some metrics for commonly seen exceptions
121     *
122     * Try and  put the most common types first.
123     * Place child types before the parent type that they extend.
124     *
125     * If this gets much larger we might have to go to a hashmap
126     */
127    if (throwable != null) {
128      if (throwable instanceof OutOfOrderScannerNextException) {
129        source.outOfOrderException();
130      } else if (throwable instanceof RegionTooBusyException) {
131        source.tooBusyException();
132      } else if (throwable instanceof UnknownScannerException) {
133        source.unknownScannerException();
134      } else if (throwable instanceof ScannerResetException) {
135        source.scannerResetException();
136      } else if (throwable instanceof RegionMovedException) {
137        source.movedRegionException();
138      } else if (throwable instanceof NotServingRegionException) {
139        source.notServingRegionException();
140      } else if (throwable instanceof FailedSanityCheckException) {
141        source.failedSanityException();
142      } else if (throwable instanceof MultiActionResultTooLarge) {
143        source.multiActionTooLargeException();
144      } else if (throwable instanceof CallQueueTooBigException) {
145        source.callQueueTooBigException();
146      }
147    }
148  }
149
150  private static Throwable unwrap(Throwable t) {
151    if (t == null) {
152      return t;
153    }
154    if (t instanceof TIOError || t instanceof IOError) {
155      t = t.getCause();
156    }
157    return ClientExceptionsUtil.findException(t);
158  }
159}